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#include "bbcameramediarecordercontrol_p.h"

#include "bbcamerasession_p.h"

#include <QDebug>
#include <QUrl>

#include <audio/audio_manager_device.h>
#include <audio/audio_manager_volume.h>

QT_BEGIN_NAMESPACE

static audio_manager_device_t currentAudioInputDevice()
{
    audio_manager_device_t device = AUDIO_DEVICE_HEADSET;

    const int result = audio_manager_get_default_input_device(&device);
    if (result != EOK) {
        qWarning() << "Unable to retrieve default audio input device:" << result;
        return AUDIO_DEVICE_HEADSET;
    }

    return device;
}

BbCameraMediaRecorderControl::BbCameraMediaRecorderControl(BbCameraSession *session, QObject *parent)
    : QPlatformMediaEncoder(parent)
    , m_session(session)
{
    connect(m_session, SIGNAL(videoStateChanged(QMediaRecorder::RecorderState)), this, SIGNAL(stateChanged(QMediaRecorder::RecorderState)));
    connect(m_session, SIGNAL(durationChanged(qint64)), this, SIGNAL(durationChanged(qint64)));
    connect(m_session, SIGNAL(actualLocationChanged(QUrl)), this, SIGNAL(actualLocationChanged(QUrl)));
    connect(m_session, SIGNAL(videoError(int,QString)), this, SIGNAL(error(int,QString)));
}

bool BbCameraMediaRecorderControl::isLocationWritable(const QUrl &location) const
{
    return true;
}

QMediaRecorder::RecorderState BbCameraMediaRecorderControl::state() const
{
    return m_session->videoState();
}

qint64 BbCameraMediaRecorderControl::duration() const
{
    return m_session->duration();
}

bool BbCameraMediaRecorderControl::isMuted() const
{
    bool muted = false;

    const int result = audio_manager_get_input_mute(currentAudioInputDevice(), &muted);
    if (result != EOK) {
        emit const_cast<BbCameraMediaRecorderControl*>(this)->error(QMediaRecorder::ResourceError, tr("Unable to retrieve mute status"));
        return false;
    }

    return muted;
}

qreal BbCameraMediaRecorderControl::volume() const
{
    double level = 0.0;

    const int result = audio_manager_get_input_level(currentAudioInputDevice(), &level);
    if (result != EOK) {
        emit const_cast<BbCameraMediaRecorderControl*>(this)->error(QMediaRecorder::ResourceError, tr("Unable to retrieve audio input volume"));
        return 0.0;
    }

    return (level / 100);
}

void BbCameraMediaRecorderControl::record(QMediaEncoderSettings &)
{
    if (m_session) {
        m_session->applyVideoSettings();
        m_session->startVideoRecording(outputLocation());
    }
}

void BbCameraMediaRecorderControl::stop()
{
    if (m_session)
        m_session->stopVideoRecording();
}

void BbCameraMediaRecorderControl::setMuted(bool muted)
{
    const int result = audio_manager_set_input_mute(currentAudioInputDevice(), muted);
    if (result != EOK) {
        emit error(QMediaRecorder::ResourceError, tr("Unable to set mute status"));
    } else {
        emit mutedChanged(muted);
    }
}

void BbCameraMediaRecorderControl::setVolume(qreal volume)
{
    const int result = audio_manager_set_input_level(currentAudioInputDevice(), (volume * 100));
    if (result != EOK) {
        emit error(QMediaRecorder::ResourceError, tr("Unable to set audio input volume"));
    } else {
        emit volumeChanged(volume);
    }
}

QT_END_NAMESPACE
